Vibration when towing up hills
Submitted: Tuesday, Jan 25, 2005 at 14:44
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19760
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Rick
When towing my 1600kg caravan up a
hill, which causes the rig to slow down, my Pajero NP diesel seems reluctant to automatically kick down to a lower gear. When and if it does (or if I kick down myself) it seems to struggle for power and the car vibrates. The vibration stops when the vehicle returns to normal speed.
This is the first time towing that I have experienced this. In fact I have always been impressed with the diesel's ability to hold on or accelerate under these conditions.
My dealer says he feels I may have a fuel starvation issue under load. However they reckon they will not be able to recreate the problem if it related to towing under load. Unless the computer has picked up something I guess resolving the problem will be difficult.
I have not had problems (yet) driving around town or on non towing trips.
Has anyone experienced anything similar? or has any suggestions as to the cause?
Rick
Reply By: Truckster (Vic) - Tuesday, Jan 25, 2005 at 16:18
Tuesday, Jan 25, 2005 at 16:18
I had an issue with my GQ auto under load, it was almost like in a manual when the revs drop
well below what they should be for that speed, and the car chugs as you keep the slipper into it..
Was told all sorts of things like torque converter to complete box rebuild.
Ended up being the TP throttle position senor thingy or similar, that and a box service and it was fine.
I went to KB Autos in Berwick Vic, they sorted it easily and quickly.
AnswerID:
94844
Follow Up By: Rick - Tuesday, Jan 25, 2005 at 16:41
Tuesday, Jan 25, 2005 at 16:41
Truckster
Thanks - I'll point this out to them at the next service
Cheers
Rick
FollowupID:
353715
Reply By: Member - Rob J (WA) - Tuesday, Jan 25, 2005 at 21:22
Tuesday, Jan 25, 2005 at 21:22
I have had a lot of experience towing vans, first started in 1969, towed a 16ft van from near Merredin in WA to
Geraldton and return with a 6 cylinder Land Rover,
what a heap.
The only auto I towed with was an XE fairmont and was advised by my mechanic to drive it like a manuel and don't drive in D keep the revs up and don't worry about fuel consumption and you won't have any bother.
The last trip, we towed a 17ft full height Coromal van from
Perth to
Cairns and back with a manual 3.4 petro Prado, never in 5th, and worked on 5km/L, costly I know but fuel is cheeper than transmissions.
AnswerID:
94886